Frame for electric machines.



PATENTED NOV. 1, 1904.

C. DIHLMANN. FRAME FOR ELECTRIC MACHINES.

APPLIOATION IILE D NOV. 23, 1901,

2SHBETSSHEET 1 $0 MODEL.

PATENTED NOV. 1, 1904.

7 G. DIELMANN.- FRAME FOR ELECTRIC MACHINES,

APPLIOATION FILED NOV. 23, 1901.

2 SHEETS-SHEET 2.

E0 MODEL.

WITNESSES @WM @4 when ELE

h 'atentcd. November 1, 190

.WHAQEHEWESU coo, dated November l, 190%.

Application flied November 23, 1901. Serial 1%. 88, 207. (No model.)

To all whom it may concern.-

Be it known that I, CARL DIHLMANN. msnagcr, a subject of the German Emperor, residing at Berlin, 7 Tauenzienstrasse; Germany, have invented certain new and usefullmprovements in Frames for Electric Machines; and I do hereby declare the following to be a full. clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

invention relates to improvements in the frames of electric alternating and multiphase current machines. Such frames for supporting the active laminated iron core carrying the field-magnet coils have been hitherto constructed of cast-iron. Ehese frames are not only very heavy and exoensive, especially in large macdines, but also offer many diffculties in Working and transporting the large cast-iron parts.

My invention has for itsobject to construct a frame for electric machines of pieces of Wrought-iron, which is comparatively light and can be easily Worked and transported costs being thus diminished.

In the accompanyingdrawings, Figure l is a side elevation of a'i'ranie of an el ctric Inachine constructed according to my. invention.

Fig. 2 1s a crosssection, in an enlarged scale. of the frame shown in Fig. 1. Figs. 3 and i show another modification of my invention in s milar views as Figs. 1 and 2.

Refer ing to Fig. l, ,r is the supportingr'rarnc of essentially annular shape and provided with any known means to carry and fasten it to the ground or any other base. To the inner side oi the frame the active iron ring a is fastened in any known Way. in Fig". 2 a mode of fastening the ring is shown by way of example. For this purpose angle irons t are connected With the frame 9 in any suitable Way-i"'or instance, by means bf bolts 7/--and between the said angle-irons the active laminated core a is firmly held by means of rods 6' passing across through the angie-irons and the core a and secured therein by nuts. The frame 51 itself is constructed a hollo annular body and consists of plates I iii are connected to each other by means of angle-irons c c. The plates 3) may be provided with holes h,- Fig. i, for ventilating the n1achine similar purposes.

in the modification shown in Figs. 3 and 4c the inner platep is extended on both sides in order to form a shield g, which protects the projecting coils c againstinjnry' in transporting the machine. ening' the shields g the edges thereof erably provided with ribs g.

I prefer to fasten the angle-irons z', carry ing the active iron or, to the frame in the manner shown by Figs. 3 and The bolts 7) are screw-bolts. carrying huts between the innor plate 32 of the frame and the angle-irons Z. the latter being placed at a sniiicicnt dis tance from the inner plate 3) ol the frame. By this arrangement i am enabledto coni'oensate any deformation of the core by incrcas-v ing the distance between the frame the are prefangle-irons n .those places at which. the core out by which should be bulged and by drawing it means of the screws 5 at those pla es it should he flattened.

I prefer compose the frame of a. number of single segments. as is shown by l, the segments being" connected with each other by any suitable means.

Having" now particularlydescribed and ascertained the nature or my said invention and the manner in which the same isto be performed. ll declare that What Iclain's is---- 1.. in an alternatirig-current machine, the combination, with a core, of a tubular girderframe arranged to support said. core.

n an alternating-current machine. the nation with a substantially circular COL e, of agirder irame surroundingsaid core, and connections between the core and. girder- :lraine whereby the core may be adjusted with relation to said girder-frame.

i in an alternating-cnrrent machine, the combination., with laminated core and a to.- bolar girder-frame surrounding said core, of angledrons arranged at each side of said core, means for clamping the laminae of the core to said. annl -irons. and means for connecting i angle'irons to the girder-trains.

in an ztlternatin -cnrrent machine, the combination, With a laminated. core and a tuhnlar girdeni'ramc surrounding said core, of

For strengthening and stifi'- angle-irons arranged at each side of said core,

means for clamping the laminae of the core to said angle-irons., end adjustable means for connecting. said angle-irons to the girderirnine whereby the core may be adjusted with relation to the frame,

5. in an electric machine, the combination, with a core, of a tubular girder-frame composed of Wrought-iron and arranged to support said core. 4

6. in an electric machine, the combination with an annular stationary'core of a Wroughtiron supporting girdewframe for said core, and connections between said frame and core.

I 7. In an electric machine, the combination, with a substantiallyannular core, of agirderframe composed oi" wroughtiron and SUI- rounding said core, and adjustable connections between the core and gi17der-frame whereby the core may be adjusted with relation to said frame.

8. in an electric machine, the combination, with an annular stationery core, of a support-- ing-irame consisting oi a plnrelity of segments of Wroughairon.

9. -in an electric machine, tne combination, with a'laminated core, and a tubular frame composed of Wrought-iron and surrounding said cone, of engle-ironsarranged at each side of said core, means for clamping the laminae oi the core to said angle lrona and means for connecting the angledrons'to the frame.

each side of said core, means for clamping the laminae of the core to said. engledrone, and adjustable means for connecting the angle-irons to the girder-frame, whereby the core may be adjusted with relation to the frame.

12. in an electric machine, the combination, with a laminated core, and a tubular girderfrantie composed of Wrought iron and surrounding said core, of engledrnns arranged at each side of said core, means for ciamping the laminae of the core to said angledrons, and

threaded bolts connecting said .anglc-irons to the girder-frame end provided with two nuts interposed between the EIiglB-lIOH and frame whereby the core may be adjusted with reletion to the frame.

n testimony wl'iereoi i hate aiiixeil my nature in presence of two witness CARL Di l Witnesses:

oLnni An iiAUlT. HENRY Hansen. 

